Felix, an American, is employed as a bookkeeper at a large hacienda in Cuba. Juan, a half-breed overseer of the estate, loves the planter's daughter. He makes brutal advances to her, and the girl is saved from his violence by Felix. Juan is deposed as overseer and Felix is given the position. In a spirit of revenge the peon steals Arabia, the daughter's horse, rides to the headquarters of the Spanish general of the district and reports that the hacienda is recruiting a detachment of insurgents. During Juan's absence the horse effects its own escape. The planter is arrested, taken to the Spanish headquarters and sentenced to be shot at sunrise. An insurgent leader in the vicinity is notified of the proceeding and hurries with his detachment of rebels to aid in the rescue. The trusty horse carried a file to the prisoner and after the bars have been demolished he carries the planter to his friends. The Spanish soldiery gives chase and is caught in an ambuscade and captured. Juan has returned to the hacienda to take the daughter away, but his evil purpose is interrupted by the arrival of a United States soldier with dispatches to Felix. The insurgents arrive with their prisoners and Felix reads a dispatch, which tells that Santiago has fallen and that his services as a military spy are ended. Juan steals away in an attempt to escape, but Arabia chases him back into the patio, where the half-breed lands in a fountain.